A paper square is folded right half over left, then bottom half up, and then the small square is folded along its diagonal from top-right to bottom-left (top-left half over). A small triangle is cut from the corner at the centre of the sheet. Which figure shows the opened square?

Question

Accepted Answer

(c). Undo the diagonal fold: the cut is copied to the top-left corner of the small square, which is a corner of the sheet. The two half folds then copy both cuts into every quarter: a diamond-shaped hole in the centre and a snip at each corner: (c).

A paper square is folded right half over left, then bottom half up, and then the small square is folded along its diagonal from top-right to bottom-left (top-left half over). A small triangle is cut from the corner at the centre of the sheet. Which figure shows the opened square?

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